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Agnatha vs Agnath - What's the difference?

agnatha | agnath |

As a proper noun agnatha

is .

As a noun agnath is

(zoology) an agnathan.

agnatha

English

Noun

(en noun)
  • An agnathan.
    • English terms with alpha privatives

    agnath

    English

    Noun

    (en noun)
  • (zoology) An agnathan.
  • * 1979 , Stephen C. Wood, Evolution of Respiratory Processes , Marcel Dekker, ISBN 0-8247-6793-4, page 218:
    • Evolution of vertebrates was accompanied by a gradual increase in oxygen availability, from the irrespirable atmosphere of the Precambrian to a PO? at 7 mmHg with the first vertebrates (agnaths ), to the present sea level PO? value of 160 mmHg with the first reptiles.
  • * 1996 , George Christopher Williams, Adaptation and Natural Selection , Princeton University Press, ISBN 0-691-02615-7, page 51:
    • The gnathostomes almost entirely replaced the agnaths , presumably because they were more effective fishes.
  • * 2002 , Harold J. Morowitz, The Emergence of Everything , Oxford University Press, ISBN 0-19-513513-X, page 113:
    • Thus, although tunicates are presumably intermediate between flatworms and agnaths', the larval tunicate more closely resembles the flatworm and adult ' agnath .
    English terms with alpha privatives ----